A background should sit behind the text, not in place of it. This paragraph lies on the tile at its true scale — if it reads without effort, the tile can go under content.
Swirling marbled bands of purple, teal, olive and rust form diamond-shaped medallions, each centered on a cross-like purple figure within a teal disc. Mirrored flourishes fill the spaces between them, and the medallions repeat in a regular grid, so the star-like forms line up in staggered rows across the surface.
CC0 — use it for anything, no attribution needed.